Toner
Abstract
A magnetic toner comprising a toner particle, the toner particle comprising a magnetic body, a crystalline resin A, and an amorphous resin B. The crystalline resin A has a monomer unit (a). The amorphous resin B has a monomer unit (b). A content of the crystalline resin A in the toner is 6.2 to 77.0 mass %. The sum of contents of the crystalline resin A and the amorphous resin B in the toner is 30.0 mass % or more. A content of the monomer unit (a) in the crystalline resin A is 50.0 to 100.0 mass %. Using SPA [(J/cm 3 ) 0.5 ] for a SP value of the crystalline resin A and using SPB [(J/cm 3 ) 0.5 ] for a SP value of the amorphous resin B, SPA and SPB satisfy 0.15≤SPB−SPA≤2.00.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A magnetic toner comprising a toner particle, the toner particle comprising:
a magnetic body, a crystalline resin A, and an amorphous resin B, wherein the crystalline resin A comprises a monomer unit (a) represented by formula (a); the amorphous resin B comprises a monomer unit (b) represented by formula (b); a content of the crystalline resin A in the toner is 6.2 to 77.0 mass %; the sum of contents of the crystalline resin A and the amorphous resin B in the toner is 30.0 mass % or more; a content of the monomer unit (a) in the crystalline resin A is 50.0 to 100.0 mass %; and using SPA ((J/cm 3 ) 0.5 ) for a SP value of the crystalline resin A and using SPB ((J/cm 3 ) 0.5 ) for a SP value of the amorphous resin B, SPA and SPB satisfy 0.15≤SPB−SPA≤2.00:
in formula (a), R 1 represents a hydrogen atom or a methyl group, L 1 represents a single bond or a divalent linking group, and m represents an integer from 15 to 35:
in formula (b), R 2 represents a hydrogen atom or a methyl group, L 2 represents a single bond or a divalent linking group, and n represents an integer from 10 to 30.
2 . The toner according to claim 1 , wherein a content of the amorphous resin B in the toner is 2.7 to 63.0 mass %.
3 . The toner according to claim 1 , wherein a content of the amorphous resin B in the toner is 20.0 to 55.0 mass %.
4 . The toner according to claim 1 , wherein a content of the monomer unit (b) in the amorphous resin B is 2.7 to 47.0 mass %.
5 . The toner according to claim 1 , wherein a content of the monomer unit (b) in the amorphous resin B is 5.0 to 40.0 mass %.
6 . The toner according to claim 1 , wherein a glass transition temperature of the amorphous resin B is 30.0 to 90.0° C.
7 . The toner according to claim 1 , wherein the monomer unit (a) is a monomer unit (a-1) represented by formula (a-1):
in formula (a-1), R 1 represents a hydrogen atom or a methyl group and m represents an integer from 15 to 35.
8 . The toner according to claim 1 , wherein the content of the crystalline resin A in the toner is 10.0 to 40.0 mass %.
9 . The toner according to claim 1 , wherein the content of the monomer unit (a) in the crystalline resin A is 65.0 to 90.0 mass %.
10 . The toner according to claim 1 , wherein the monomer unit (b) is a monomer unit (b-1) represented by formula (b-1):
in the formula (b-1), R 2 represents a hydrogen atom or a methyl group and n represents an integer from 10 to 30.
11 . The toner according to claim 1 , wherein a content of the magnetic body in the toner is 7.0 to 45.0 mass %.Join the waitlist — get patent alerts
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